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Versions: 00 01 02 03 04 RFC 5156

Network Working Group                                        M. Blanchet
Internet-Draft                                                  Viagenie
Intended status: Informational                          January 15, 2008
Expires: July 18, 2008


                       Special-Use IPv6 Addresses
                draft-ietf-v6ops-rfc3330-for-ipv6-04.txt

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   This Internet-Draft will expire on July 18, 2008.

Copyright Notice

   Copyright (C) The IETF Trust (2008).

Abstract

   This document describes the global and other specialized IPv6 address
   blocks.  It does not address IPv6 address space assigned to operators
   and users through the Regional Internet Registries.  These
   descriptions are useful for route and IP filtering, for documentation
   and other purposes.






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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  Address Blocks  . . . . . . . . . . . . . . . . . . . . . . . . 3
     2.1.  Node-scoped Unicast . . . . . . . . . . . . . . . . . . . . 3
     2.2.  IPv4-Mapped Addresses . . . . . . . . . . . . . . . . . . . 3
     2.3.  IPv4-compatible Addresses . . . . . . . . . . . . . . . . . 3
     2.4.  Link-scoped Unicast . . . . . . . . . . . . . . . . . . . . 3
     2.5.  Unique-Local  . . . . . . . . . . . . . . . . . . . . . . . 3
     2.6.  Documentation Prefix  . . . . . . . . . . . . . . . . . . . 4
     2.7.  6to4  . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
     2.8.  Teredo  . . . . . . . . . . . . . . . . . . . . . . . . . . 4
     2.9.  6bone . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
     2.10. ORCHID  . . . . . . . . . . . . . . . . . . . . . . . . . . 4
     2.11. Default Route . . . . . . . . . . . . . . . . . . . . . . . 4
     2.12. IANA Special Purpose IPv6 Address Block . . . . . . . . . . 5
     2.13. Multicast . . . . . . . . . . . . . . . . . . . . . . . . . 5
   3.  Security Considerations . . . . . . . . . . . . . . . . . . . . 5
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 5
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 5
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 6
     6.1.  Normative References  . . . . . . . . . . . . . . . . . . . 6
     6.2.  Informative References  . . . . . . . . . . . . . . . . . . 6
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . . . 6
   Intellectual Property and Copyright Statements  . . . . . . . . . . 8


























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1.  Introduction

   This document describes the global and other specialized IPv6 address
   blocks.It does not address IPv6 address space assigned to operators
   and users through the Regional Internet Registries.  These
   descriptions are useful for route and IP filtering, for documentation
   and other purposes.

   The document is structured by address types.  The document format is
   similar to [RFC3330].

   Some tips about filtering are given, but are not mandatory to
   implement.

   The addresses listed in this document must not be hard coded into
   implementations.


2.  Address Blocks

2.1.  Node-scoped Unicast

   ::1/128 is the loopback address [RFC4291].

   ::/128 is the unspecified address [RFC4291].

   Addresses within this block should not appear on the public Internet.

2.2.  IPv4-Mapped Addresses

   ::FFFF:0:0/96 are the IPv4-mapped addresses [RFC4291].  Addresses
   within this block should not appear on the public Internet.

2.3.  IPv4-compatible Addresses

   ::ipv4-address/96 are the IPv4-compatible addresses [RFC4291].  These
   addresses are deprecated and should not appear on the public
   Internet.

2.4.  Link-scoped Unicast

   fe80::/10 are the link-local unicast [RFC4291] addresses.  Addresses
   within this block should not appear on the public Internet.

2.5.  Unique-Local

   fc00::/7 are the unique-local addresses [RFC4193].  Addresses within
   this block should not appear by default on the public Internet.



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   Procedure for advertising these addresses are further described in
   [RFC4193].

2.6.  Documentation Prefix

   The 2001:db8::/32 are the documentation addresses [RFC3849].  They
   are used for documentation purposes such as user manuals, RFCs, etc.
   Addresses within this block should not appear on the public Internet.

2.7.  6to4

   2002::/16 are the 6to4 addresses [RFC3056].  The 6to4 addresses may
   be advertised when the site is running a 6to4 relay or offering a
   6to4 transit service.  However, the provider of this service should
   be aware of the implications of running such service[RFC3964], which
   include some specific filtering rules for 6to4.  IPv4 addresses
   disallowed in 6to4 prefixes are listed in section 5.3.1 of [RFC3964].

2.8.  Teredo

   2001::/32 are the Teredo addresses [RFC4380].  The Teredo addresses
   may be advertised when the site is running a Teredo relay or offering
   a Teredo transit service.

2.9.  6bone

   5f00::/8 were the addresses of the first instance of the 6bone
   experimental network [RFC1897].

   3ffe::/16 were the addresses of the second instance of the 6bone
   experimental network [RFC2471].

   Both 5f00::/8 and 3ffe::/16 were returned to IANA [RFC3701].  These
   addresses are subject to future allocation, similar to current
   unallocated address space.  Addresses within this block should not
   appear on the public Internet until they are reallocated.

2.10.  ORCHID

   2001:10::/28 are ORCHID addresses [RFC4843].  These addresses are
   used as identifiers and are not routable at the IP layer.  Addresses
   within this block should not appear on the public Internet.

2.11.  Default Route

   ::/0 is the default unicast route address.





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2.12.  IANA Special Purpose IPv6 Address Block

   An IANA registry (iana-ipv6-special-registry) is set [RFC4773] for
   Special Purpose IPv6 address blocks assignments used for experiments
   and other purposes.  Addresses within this registry should be
   reviewed for Internet routing considerations.

2.13.  Multicast

   ff00::/8 are multicast addresses [RFC4291].  They have a 4 bits scope
   in the address field where only some value are of global scope
   [RFC4291].  Only addresses with global scope in this block may appear
   on the public Internet.

   Multicast routes must not appear in unicast routing tables.


3.  Security Considerations

   This document lists addresses and guidelines associated with them.
   The guidelines should improve the security of networks by the
   filtering of invalid routing prefixes.


4.  IANA Considerations

   To ensure consistency and to provide cross-referencing for the
   benefit of the community, IANA is requested to insert the following
   paragraph in the header of the iana-ipv6-special registry.

   "Other special IPv6 addresses requiring specific considerations for
   global routing are listed in RFCXXXX."

   NOTE TO RFC EDITOR and IANA: replace RFCXXXX by the assigned RFC
   number of this document.


5.  Acknowledgements

   Florent Parent, Pekka Savola, Tim Chown, Alain Baudot, Stig Venaas,
   Vincent Jardin, Olaf Bonness, David Green, Gunter Van de Velde,
   Michael Barnes, Fred Baker, Edward Lewis, Marla Azinger, Brian
   Carpenter, Mark Smith, Kevin Loch, Alain Durand, Jim Bound, Peter
   Sherbin, Bob Hinden, Gert Doering, Niall O'Reilly, Mark Townsley and
   Jari Arkko have provided input and suggestions to this document.


6.  References



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6.1.  Normative References

   [RFC4291]  Hinden, R. and S. Deering, "IP Version 6 Addressing
              Architecture", RFC 4291, February 2006.

6.2.  Informative References

   [RFC1897]  Hinden, R. and J. Postel, "IPv6 Testing Address
              Allocation", RFC 1897, January 1996.

   [RFC2471]  Hinden, R., Fink, R., and J. Postel, "IPv6 Testing Address
              Allocation", RFC 2471, December 1998.

   [RFC3056]  Carpenter, B. and K. Moore, "Connection of IPv6 Domains
              via IPv4 Clouds", RFC 3056, February 2001.

   [RFC3330]  IANA, "Special-Use IPv4 Addresses", RFC 3330,
              September 2002.

   [RFC3701]  Fink, R. and R. Hinden, "6bone (IPv6 Testing Address
              Allocation) Phaseout", RFC 3701, March 2004.

   [RFC3849]  Huston, G., Lord, A., and P. Smith, "IPv6 Address Prefix
              Reserved for Documentation", RFC 3849, July 2004.

   [RFC3964]  Savola, P. and C. Patel, "Security Considerations for
              6to4", RFC 3964, December 2004.

   [RFC4193]  Hinden, R. and B. Haberman, "Unique Local IPv6 Unicast
              Addresses", RFC 4193, October 2005.

   [RFC4380]  Huitema, C., "Teredo: Tunneling IPv6 over UDP through
              Network Address Translations (NATs)", RFC 4380,
              February 2006.

   [RFC4773]  Huston, G., "Administration of the IANA Special Purpose
              IPv6 Address Block", RFC 4773, December 2006.

   [RFC4843]  Nikander, P., Laganier, J., and F. Dupont, "An IPv6 Prefix
              for Overlay Routable Cryptographic Hash Identifiers
              (ORCHID)", RFC 4843, April 2007.










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Author's Address

   Marc Blanchet
   Viagenie
   2600 boul. Laurier, suite 625
   Quebec, QC  G1V 4W5
   Canada

   Email: Marc.Blanchet@viagenie.ca
   URI:   http://www.viagenie.ca









































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Full Copyright Statement

   Copyright (C) The IETF Trust (2008).

   This document is subject to the rights, licenses and restrictions
   contained in BCP 78, and except as set forth therein, the authors
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Acknowledgment

   Funding for the RFC Editor function is provided by the IETF
   Administrative Support Activity (IASA).





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